Synonyms of red flags

red flags

noun

plural of red flag

as in red lights

something that tells of approaching danger or risk

the résumé she accidentally left on the office printer was a red flag that she was planning to quit

Synonyms & Similar Words

• red lights
• warnings
• signs
• wake-up calls
• tocsins
• indicators
• signals
• cautions
• tip-offs
• notifications
• premonitions
• buoys
• omens
• portents
• declarations
• presages
• announcements
• notices
• foretokens
• foretastes
• knells

Antonyms & Near Antonyms

• all clears

Example Sentences

Recent Examples of red flags

You may be fooled into joining a brokerage with high fees, poor investment options or other red flags. — Dan Avery, CNBC, 17 July 2026

Platner’s backers stuck with him too long with so many red flags, and Schumer and the DSCC were rightly skeptical of him. — Burgess Everett, semafor.com, 16 July 2026

But the dosage change didn’t immediately raise any red flags. — Beth Mole, ArsTechnica, 2 July 2026

There have been red flags throughout the first three seasons. — Joelle Goldstein, USA Today, 2 July 2026

Members of Forbes Technology Council share red flags that can help users make smarter decisions about which apps deserve their trust. — Expert Panel®, Forbes.com, 23 June 2026

Some behaviors are more subtle—and according to industry professionals, these are the biggest red flags. — Joey Skladany, Travel + Leisure, 14 June 2026

Those red flags include things like surveys showing overconfidence in stocks and technical measures of tightening credit conditions. — Jim Edwards, Fortune, 9 June 2026

The case against The case against McKenna is built on how high those aforementioned red flags are raised within the Leafs organization. — Joshua Kloke, New York Times, 2 June 2026